scholarly journals Modeling the Processing and Transportation Logistics of Forest Residues Using Life Cycle Assessment

2017 ◽  
Vol 115 (2) ◽  
pp. 86-94 ◽  
Author(s):  
Cindy X. Chen ◽  
Francesca Pierobon ◽  
Rene Zamora-Cristales ◽  
Indroneil Ganguly ◽  
John Sessions ◽  
...  
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Forest Residues ◽  
Transportation Logistics

scholarly journals Life cycle assessment of biochar produced from forest residues using portable systems

2020 ◽  
Vol 250 ◽  
pp. 119564 ◽  
Author(s):  
Maureen Puettmann ◽  
Kamalakanta Sahoo ◽  
Kelpie Wilson ◽  
Elaine Oneil
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Forest Residues

Life-cycle assessment and techno-economic analysis of biochar produced from forest residues using portable systems

2020 ◽  
Author(s):  
Kamalakanta Sahoo ◽  
Amit Upadhyay ◽  
Troy Runge ◽  
Richard Bergman ◽  
Maureen Puettmann ◽  
...  
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Economic Analysis ◽  
Forest Residues

A Comparative Life-Cycle Assessment of Briquetting Logging Residues and Lumber Manufacturing Coproducts in Western United States

2018 ◽  
Vol 34 (1) ◽  
pp. 11-24 ◽  
Author(s):  
Sevda Alanya-Rosenbaum ◽  
Richard D. Bergman ◽  
Indroneil Ganguly ◽  
Francesca Pierobon
Keyword(s):  
United States ◽  
Life Cycle Assessment ◽  
Life Cycle ◽  
Environmental Impacts ◽  
Timber Harvest ◽  
The United States ◽  
Western United States ◽  
Forest Residues ◽  
Post Harvest ◽  
Forest Residue

Abstract. Timber harvest activities in the western United States have resulted in large volumes of low- to no-value logging (forest) residues. Alternatives to pile-and-burning are needed to best utilize this material and to mitigate the resultant environmental impacts. Briquetting (densifying) forest residues near-woods is one such option and is the focus of this study. This study presents a cradle-to-grave life-cycle assessment (LCA) performed to evaluate the overall environmental impacts associated with briquetting post-harvest forest residues and dry sawmill residues (sawdust) in the Pacific Northwest (PNW) region of the United States. Environmental impacts resulting from the two briquette production systems were compared with firewood and propane production, which are common residential heating sources in rural areas of the PNW, on a per 1 MJ of useful energy for domestic heating. In the briquetted post-harvest forest residue system, the feedstock preparation stage had the largest share in global warming (GW) impact, mainly resulting from the drying process (69.5%), followed by transportation. Valorization of post-harvest forest residues, in combination with a briquetter, to produce a bioenergy carrier was revealed to be advantageous in smog, acidification, and eutrophication impact categories, with considerable environmental benefits from avoided pile-and-burn emissions. With all scenarios investigated, briquette production from post-harvest forest residues with high dryer efficiency showed lowest GW impact compared to briquetting sawmill residues and firewood supply chain. For a scenario analysis, LCA showed that using a diesel generator to support the forest residue briquetter operation resulted in 45% higher GW impact compared to use of a wood-gas-powered generator. Keywords: Bioenergy, Biomass densification, Briquette, Forest residues, Life-cycle assessment, Sawdust.

scholarly journals Life Cycle Assessment of Secondary Mangrove Forest in Bintuni Bay,West Papua, Indonesia

2017 ◽  
Vol 12 (3) ◽  
pp. 616-627
Author(s):  
Rocky Marius de Ramos ◽  
Michael Lochinvar S. Abundo ◽  
Evelyn B. Taboada
Keyword(s):  
Life Cycle Assessment ◽  
Renewable Energy ◽  
Life Cycle ◽  
Energy Use ◽  
Wood Products ◽  
Forest Residues ◽  
Power Sources ◽  
West Papua ◽  
Environment Study ◽  
The Impact

The life cycle assessment is conducted in order to assess the impact of mangrove woodchip production in Bintuni bay, West Papua Indonesia on the environment. Study includes the analysis of non-renewable energy use (MJ), global warming potential or carbon footprint (kg CO2), acidification potential (kg SO2) and ozone creation potential (kg O3) of mangrove logging, processing and shipment. Mangrove woodchip production consumes 960 MJ of non-renewable energy and gives out 59.59 kg CO2, .383 kg SO2 and 30.39 kg O3, which is the lowest in comparison with other wood products. Mangrove processing incur less fuel because it is delivered in bulk to the processing area via barges in comparison to other wood products The current shipping of mangrove woodchips to customers has the greatest environmental impact because of the use of bunker fuel. The processing of mangrove woodchips used diesel exclusively for fuel in its power sources. Forest residues from logging can be a source of renewable fuel and may also be another source of new products.

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